XML 11 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document and Entity Information
 12 Months Ended
Dec. 31, 2017
Entity Information [Line Items]  
Entity Registrant Name BOYD GAMING CORP
Entity Central Index Key 0000906553
Current Fiscal Year End Date --12-31
Entity Filer Category Large Accelerated Filer
Document Type 8-K
Document Period End Date Dec. 31, 2017
Document Fiscal Year Focus 2017
Document Fiscal Period Focus FY
Amendment Flag false
Entity Well Known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes